Duncan morrison



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PATENTE-:D

DEC 3l i867 @with tntrs etrnt @fitta DUNCAN MORRISON, OF PORTLAND, MINE, ASSIGNOR TO H-IMSELF AND.

WILLIAMv HAMMOND, 0F SAME PLAGE. i

Letters Patent No. 72,8871, dated December 31, 18.67,

IMPROVEMENT IN MOTOR FOR UARBIAGES.

@in tlgnnle referat itin tigen tettm patent mn' making mit ut tige time.

To ALL WHoM 1T MAY concerns:

V Beit known that I, DUNCAN MOBRISQN, of Portland, in the county of Cumberland, und State of Maine, have invented a new and improved Motor for Cnrriages; and I he'reby declare the following to be afull, clear,r and exact description thereof, which will enable others tomake and'use my invention, reference being had to the accompanying drawings forming part of lthis specication, in which is .shown a side view of my invention.

This invention consists of an arrangement of weights and levers, for the Ypurpose of imparting a rotary motion to a shaft, for the Apurpose of propelling carriages and vehicles, and for other purposes.

A B show two pivoted levers, having trucks, a 1),'-on theirends.v Over these `trucks pass'v cords, c a', being attached at d d', then under the stationary trucks e e', thence over the fixed trucks ff,'after which they areI attached to weights gg. Thus, by pressingdowfnward upon thel levers B the weights gg are raisedt L shows an apron or belt, passing around thetivo drums t' z". The Weightsg g are madevto rise and fall quite close to this belt L, and each hasn projection, j, to catch the Vteeth or Asteps on the apron or belt. After the weights are raised, (see g,) theirbeing allowed to fall iniparts'revolution to the drsums iz", from the last of. which motion may be communicated to any desired machinery. By a succession of these Weights, n constant revolution may be given to the belt hand the drums .z", and whilesome are descending, others may be raisedby their levers, like A B. In order to retain the weights when raised, as g, I apply spring-catches, m, with hooks on their lower ends, so that when raised, the weights restingnponthese hooks or projections are held thus raised until released. n shows a levelyby lifting or pressing upon which the weights are released, and allowed to drop. The lever operates the springs by ineens of the cord o passing over pulleys p r, and finally attached to the catches m, as shown in the drawing.

My machine is intended to operate as follows: First,"raise the weights g'g. -There may, of course, be a\ succession of these, as numerous as desirable. When raised, each is held by its catch m, as described. Y Then release the weights in succession, at the same time raising those that have descended as fast as they fall. Thus a continuous power may be `applied to the belt h, and a continuous revolution impartedto the drums or shafts it".

It is evident this invention may be applied to other purposes, as well as that of propelling carriages, such as running sewing-machines, Snc. This invention een be easily applied to a sewing-machine for the purpose of imparting motion thereto, and is well adapted for such use. l

WhatI claim as `myinvention, and desire to secure by Letters Paten-t, isv A The arrangement ot' the levers A B, pulleys a b, cords c c', trucks e e and ff', weights g g', toothed belt h, drum z'z", and the releasngdeviee, composed of the lever n, oord o, pulleysp r, andspring-catches m, all as and for the purposes-set forth.

' DUNCAN MORRISON.

Witnesses:

WM. H. CLIFFORD, HENRY C. HOUSTON. 

